Check your URL:
How do I fix it ?
In order to pass this test, you have to update each link identified in this report, by adding a rel="noopener" or a rel="noreferrer" attribute or both:
<a href="https://example.com" target="_blank" rel="noopener noreferrer">
rel="noopener" prevents the new page from being able to access the window.opener property and ensures it runs in a separate process.
rel="noreferrer" has the same effect but also prevents the Referer header from being sent to the new page.